Design of diffractive optical element for laser phosphor lighting with uniform illumination without zero-order effect

Wu M.-CTsuei C.-HJao C.-S.HOANG-YAN LIN2021-09-022021-09-0220190097966Xhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85081153441&doi=10.1002%2fsdtp.13101&partnerID=40&md5=e43fa124402239d27fb9a990346be18ehttps://scholars.lib.ntu.edu.tw/handle/123456789/580828Hot spot issues are critical for the performance of laser phosphor lighting systems owing to the high energy concentration of laser beam focusing, which will easily damage the phosphor plate. We present a novel algorithm to efficiently suppress the zero-order diffraction with high acceptable tolerances during DOE fabrication. ? 2019 SID-the Society for Information Display. All rights reserved.Density (optical); Diffraction; Inertial confinement fusion; Iterative methods; Laser beams; Laser theory; Light emission; Lighting fixtures; Phosphors; Iterative Fourier transform algorithms; Lighting systems; Scalar diffraction theory; Uniform illumination; Zero order; Diffractive optical elementsDesign of diffractive optical element for laser phosphor lighting with uniform illumination without zero-order effectconference paper10.1002/sdtp.131012-s2.0-85081153441